1.Color and SizeColor: Blue. Size: 58mmx32mm. The blue flashing roller skate wheels is a color with moderate brightness, but the pale blue can show its unique color expansion power when you glide. You can become the most dazzling presence on the skating rink by riding it. 2.Premium PU MaterialThe wheels are made of polyurethane polymer material, which has the characteristics of anti-skid, wear-resistant, compression-resistant and shock-absorbing. It can make your sliding process more comfortable. At the same time, it can also increase the thickness of the small wheel hub, prolong the service life, and make your high-speed rotation safer. 3.Perfect High Elastic Shock Absorption EffectThe Luminous Skateboard Wheels achieve a better shock absorption effect by expanding the contact area with the ground, allowing you to easily overcome obstacles on the road, such as gravel, bricks and speed bumps.With 80% rebound effect, your sliding process is more comfortable and smooth. 4.Durable and Long Service LifeThe hardness of 82A and the high-speed rotating bearing of 608RS enable the wheel to take into account wear resistance while maintaining low noise and prolong its service life. 82A hardness wheels allow you to go smoothly outdoors and on slippery floors. 5.Applicable PlaceThe magnetic core inside the Skating Wheels is also wrapped with a protective cover, which is not fragile and also allows the wheel to shine more. Suitable for most people to learn art skating, hockey skating or daily practice on asphalt roads, parks, roller skating fields and other places. Its convenience and practicality will not let you down, please rest assured to buy it Specifications: Material: PU, PP Color: Blue Hardness: 82A Bearing: High-speed 608RS Core: LED lights Rebound: 80% One wheel: 2 bearings + 1 magnetic core Size: (Approx) (LxW) 58X32mm/22.83x12.6inch Package Included: 4 PCs x Roller Skate Wheels